Ore-concentrator.



No. 64I,248. APafn'ted 1an. 9, |900. A. TEN/ WINKEL.

ORE CNCENTRATOB. (Application filed .Tune 26, 1899.)

2 Sheets-Sheet l.

(No Model.)

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Svp-muto@ A. 7T@ /wb/ff/ l ma .woPms paens ro. wommmo.. WASH Patented Jan. 9, |900. A. TEN WINKEL. one CUNCENTRATUR.

{Application filed June 26, 1899.)

2 Sheets-Sheet 2.

(No Model.)

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AUGUST TEN WINKEL, OF DENVER, COLORADO.

ORE-CONCENTRATOR.

SPECIFICATION forming part of Letters Patent No. 641,248, dated January 9, 1900.

Application filed June 26,1899.

T0 @ZZ whom t may concern:

Be it known that I, AUGUST TEN WINKEL, a citizen of the United States of America, residing at Denver, in the county of Arapahoe and State of Colorado, have invented certain new and useful Improvements in Ore-Concentrators; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the figures of reference marked thereon, which form a part of this speciiication.

My invention relates to improvements in ore-concentrators of the class set forth in Let.

ters Patent No. 622,641, issued to me April 4, 1899. In my present construction instead of mounting the traveling Hexible apron on terminal drums, as in said patent, the edges of the apron are connected at suitable intervals with chains which engage a pair of sprocket-wheels located at each extremity of the machine. Between the points of attachment to the chains the apron sags down, forming pockets or valleys in which the separation of the mineral from the gangue takes place. The agitating-rolls traveling underneath the apron are journaled in chains which engage the terminal and intermediate sprocketwheels which form their support.

Having thus briefly outlined my present invention, I will proceed to describe the same in detail, reference being made to the accompanying drawings, in which is illustrated an embodiment thereof.

In the drawings, Figure 1 is a longitudinal section taken through my improved machine. Fig. 2 is a top View of the same with a portion of the apparatus removed and the apron partly broken away. Fig. 3 is an elevation of the same, the upper portion of the apron being shown in section. Fig. 4 is a fragmentary perspective View of the exible apron shown in connection with one of the sprocketchains and on an enlarged scale. Fig. 5 is a fragmentary perspective View of the separating-fingers which engage the iiexible apron from above. Fig. 6 illustrates the operating mechanism whereby the flexible apron and the agitating-rolls are made to travel, but at different rates of speed.

Serial No. 721,837. (No model.)

Similar reference characters indicating corresponding parts in the views, let the numeral 5 designate a base, upon which are mounted uprights or posts 6, supporting the upper longitudinal bars 7, one on each side. On these bars 7 are journaled two pairs of sprocket-wheels 8, one pair being located at each end of the machine and engaged by chains 9, to which is attached the endless iexible apron 10, composed of rubber or other suitable material impervious to water, provided with longitudinal rubber anges 10 and cross strips or riffles 10c. The flanges prevent the pulp from running over the sides of the apron and the riffles have a tendency to prevent the concentrates from flowing downward with the gan gue toward the foot or tail of the machine. The chains 9 intermediate the end sprocket-s are supported by horizontal longitudinal ledges 12, one on each side of the machine. The ledges are attached to upright bars 3, whose lower extremities are secured to the side bars 7. The chains 9-are provided with lugs 9, suitably separated, and to which is attached the apron 10. Between the transverse lines connecting the said lugs or points of attachment on opposite sides of the apron the latter sags downward while traveling toward the head or left-hand extremity of the machine, (see Figs. 1 and 2,) forming pockets or valleys l()d of'suitable depth, enough slack being left in the apron between these lines for the purpose. Into these valleys or pockets project fingers 13, whose upper extremities are hinged to rods 14, attached to a suitable stationary support l5. These fingers assist in the separation of the metals from the gangue as the apron travels beneath them. Engaging the apron 10 underneath are transverse agitating-rolls 16, whose extremities are journaled in chains 17, which engage the large terminal sprocket-wheels 18 and are supported by the smaller intermediate sprocketwheels 19. All of these sprocket-Wheels are journaled in the side bars 7 of the frame. The agitating-rolls 16 are iiuted longitudinally or provided with ribs 16a to facilitate the agitation of the material on the apron.

A pair of idler-wheels 4:, mounted on the forward posts 6, engage the chains 9 and guide the apron l0 into a tank 20, containing water. Into this tank the concentrates caught by the ICO .movin g apron 10.

apron are discharged as the apron passes downward.

In the operation of the machine the agitating-rolls 16 and the apron 10 travel in the direction indicated by the arrows in Fig. 1, while the water and gangue, or tailings, travel by gravity in the opposite direction, the head of the machine being sufcientlyelevated above the foot to give the desired slope or inclination'for the purpose. (See Fig. 1.)

The material to be treated is fed in the form of pulp into a hopper 21 and passes thence through an opening formed in the ringer-supporting board 15 to the flexible apron, where it collects in the pockets 10d of the slowly- In these pockets the mineral is separated from the gan gue through the combined action of the agitator 16 and the lingers 13. The mineral, after separation, by virtue of its superior gravity and being assisted by the rifiies 10C maintains its position in the bottom of the valleys or pockets 10(1 and is carried forward and upward by the.

apron and thence downward into the tank 20, as heretofore explained. The gangue being lighter or of less specific gravity is carried downward with the water in the direction opposite the travel of the apron and discharged into a tailings-tank 22 at the tail of the machine.

The movement of the apron 10 and the agitators 16 at different rates of speed, as heretofore explained, is im parted from a shaft 23, to which are made fast a small sprocket-wheel 24 and a larger sprocket-wheel 25. The small sprocket-wheel 24 is connected with a larger sprocket-wheel 27, fast on a shaft 26, carrying the front wheels 8 at the head of the machine.

Having thus described my invention, what I claim is- 1. In an ore-concentrator, the combination with a suitable frame, provided with sprocket-wheels at both extremities, and chains engaging said wheels, of an endless apron, attached to said chains at suitable intervals, and left suciently slack to form pockets, transverse strips extending between the points where the apron is attached to the chains and detinin g the length of the pockets, the mechanism being so arranged that the mineral is carried upward with the apron, and the gan gue downward by the flow of the water.

2. In an ore-concentrator, the combination of a suitable frame, end sprocket-wheels, chains mounted thereon, an endless, traveling apron impervious to water, attached to said chains in a manner to form pockets or valleys in the apron,the frame being provided with longitudinal, side ledges, upon which the apron-chains are supported between the terminal sprockets, sprocket-wheels mounted on the frame between the apronsprockets, chains mounted on said wheels, agitating-rollers attached to the last-named chains and engaging the apron underneath, a stationary support mounted above the apron, depending lingers hinged to said support and engaging the apron from above, and means for propelling the apron and agitators in the same direction, but at different rates of speed.

3. In an' ore-concentrator the combination with a suitable frame provided with sprocket-wheels at both extremities and chains engaging said wheels, of an endless apron ixn pervious to water, attached to said chains at suitable intervals and left sufficiently slack to form pockets, transverse riftles attached to said apron, each pocket having a riflle at each extremity and one or more intermediate riflies, the mechanism being so arranged that the mineral is carried upward with the apron and the gangue downward by the flow of the water.

In testimony whereof l afiix my signatur in presence of two witnesses. l

AUGUST TEN WINKEL.

Witnesses:

A. J. OBRIEN, NELLIE G. DANIELs. 

